Redmine/app/views/admin/mail_options.rhtml

<h2><%=l(:field_mail_notification)%></h2>

<% form_tag ({:action => 'mail_options'}, :id => 'mail_options_form') do %>

<div class="box">
<p><%=l(:text_select_mail_notifications)%></p>

<% actions = @actions.group_by {|p| p.group_id } %>
<% actions.keys.sort.each do |group_id| %>
<fieldset style="margin-top: 6px;"><legend><strong><%= l(Permission::GROUPS[group_id]) %></strong></legend>
<% actions[group_id].each do |p| %>
  <div style="width:170px;float:left;"><%= check_box_tag "action_ids[]", p.id, p.mail_enabled? %>
  <%= l(p.description.to_sym) %>
  </div>
<% end %>
</fieldset>
<% end %>

<br />
<p><%= check_all_links 'mail_options_form' %></p>
</div>

<%= submit_tag l(:button_save) %>
<% end %>